this post was submitted on 14 Nov 2023
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Chinese Company Developing 64-core RISC-V Chip with Tech from U.S. (www.hpcwire.com)
submitted 10 months ago by [email protected] to c/[email protected]
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[–] [email protected] 1 points 10 months ago

The headline is of course confused. The 64 core chips (SG2042, SG2044) use Chinese-developed THead cores. Only the 16 core chip (SG2380) is using SiFive cores.

RISC-V extensions have compatibility issues, and the company had to develop a new chip to accommodate the final vector extensions, Liuxi told HPCwire.

Liuxi should be more accurate. RVV 0.7 is a draft version with absolutely zero expectation that it will be compatible with the 1.0 version. Freedom to make radical and incompatible changes from draft to draft is the whole point of having draft versions.